"The door was wide open and it hit her, it knocked her down," Bartlett's neighbor Bob Curcio told news channel WPTV.

According to the Palm Beach County Sheriff's report, the woman was dragged backward for about 30 feet. Witnesses said Bartlett was hit several times by the car as it circled the pavement. Neighbors then dragged her to safety.

The vehicle continued in a circular motion, maintaining a speed of about 10-15 miles an hour. "It started making loops, this way, to the left, counterclockwise," Curcio told WPTV. "It just kept on going."

Firefighters and police responded, trying in vain to stop the car by flattening the tires.

Rammed by patrol carFirefighter Jody Marlow tried to jump into the vehicle and stop it, but was thrown from the car and suffered minor injuries, the report said. The Oldsmobile was eventually stopped by a sheriff's deputy, who rammed it with his patrol car.

Bartlett is in serious but stable condition at Delray Medical Center, according to the sheriff's office.

Bartlett's granddaughter told WPTV the woman had no broken bones, but she had a big cut on the back of her head that had to be stapled.